(1) Are you kidding me? This is basic logic. Adding additional failure points to a system, with everything else being the same, creates higher failure rates.

(2) If you need a truck to move it, I call that bricked. Normal cars, when they loose various systems, are still mobile. A normal car can still be rolled even without any electrical system working. Steering and brakes can be are completely controllable via muscles alone, even on electric cars. An autodrive car could be a total unknown. Some don't even have a manual (non-electic) steering wheel.